2198413421 has 2 divisors, whose sum is σ = 2198413422. Its totient is φ = 2198413420.

The previous prime is 2198413417. The next prime is 2198413433. The reversal of 2198413421 is 1243148912.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1152602500 + 1045810921 = 33950^2 + 32339^2 .

It is a cyclic number.

It is not a de Polignac number, because 2198413421 - 2² = 2198413417 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2198413621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1099206710 + 1099206711.

It is an arithmetic number, because the mean of its divisors is an integer number (1099206711).

Almost surely, 2^2198413421 is an apocalyptic number.

It is an amenable number.

2198413421 is a deficient number, since it is larger than the sum of its proper divisors (1).

2198413421 is an equidigital number, since it uses as much as digits as its factorization.

2198413421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13824, while the sum is 35.

The square root of 2198413421 is about 46887.2415588719. The cubic root of 2198413421 is about 1300.2787214998.

The spelling of 2198413421 in words is "two billion, one hundred ninety-eight million, four hundred thirteen thousand, four hundred twenty-one".